![This was how physicians used to hear lung and heart sounds till Lennac invented the stethoscope. Doctors over centuries have still not forgiven Lennac for his invention. - 9GAG This was how physicians used to hear lung and heart sounds till Lennac invented the stethoscope. Doctors over centuries have still not forgiven Lennac for his invention. - 9GAG](https://img-9gag-fun.9cache.com/photo/an5XBnL_460s.jpg)
This was how physicians used to hear lung and heart sounds till Lennac invented the stethoscope. Doctors over centuries have still not forgiven Lennac for his invention. - 9GAG
![Lannaec's original design for the stethoscope from 'De l'auscultation... | Download Scientific Diagram Lannaec's original design for the stethoscope from 'De l'auscultation... | Download Scientific Diagram](https://www.researchgate.net/publication/305803185/figure/fig1/AS:592211985055744@1518205748146/Lannaecs-original-design-for-the-stethoscope-from-De-lauscultation-mediate-and-an.png)
Lannaec's original design for the stethoscope from 'De l'auscultation... | Download Scientific Diagram
Bioana - René Laennec's stethoscope has helped save countless lives; Prior to its invention, physicians performed physical examinations by listening with the human ear alone. This was far from ideal as internal
![Newsflicks on X: "Physician René Laennec, inventor of the stethoscope, was born on Feb 17, 1781 https://t.co/60F8IfsnNJ" / X Newsflicks on X: "Physician René Laennec, inventor of the stethoscope, was born on Feb 17, 1781 https://t.co/60F8IfsnNJ" / X](https://pbs.twimg.com/media/C41I-FkWcAEvv67.jpg)